Three-phase, 60,000-kv-a. turbo alternators for Gennevilliers

The Socie´te´ Alsacienne de Constructions Me´caniques at Belfort, (France), installed for the Socie´te´ l´Union d´Electricite´, in the Gennevilliers Generating Station near Paris, three 45,000-kv-a. sets in 1922 and another in 1924. The alternators of these sets were, at the time, the largest four-pole machines ever built but they are now exceeded in power by the two new 60,000-kv-a. units, of 65,000-kv-a. overload capacity, that the Socie´te´ Alsacienne is building for the Gennevilliers Generating Station. Like the 45,000-kv-a. generators, these new units are designed for delivering three-phase current at 6000 volts, 50 cycles, and run at 1500 rev. per min. direct-connected to 50,000-kw. steam turbines (Fig. 3).